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Naked Energy
High-density solar collectors for thermal and power generation
About Naked Energy
Naked Energy, founded in 2009 by CEO Christophe Williams, designs and manufactures high-density solar thermal and photovoltaic thermal (PVT) technology to decarbonize heat and power. Williams, inspired by his grandfather's work in renewable energy prototypes during the 1970s fuel crisis, transitioned from a career in creative media and advertising to establish a purpose-driven company focused on a significant, yet often overlooked, aspect of energy consumption: heat, which accounts for over half of global energy use.
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The company's core products are the VirtuHOT and VirtuPVT collectors. VirtuHOT is a solar thermal collector that generates heat up to 120°C for water and space heating. VirtuPVT is a hybrid product that generates both electricity and thermal energy from a single collector, reportedly producing three to four times more energy than traditional photovoltaic (PV) panels. The modular, evacuated tube design of the Virtu collectors allows for high energy density, making them suitable for buildings with limited roof space but high energy demands, such as hotels, hospitals, leisure centers, and manufacturing facilities.
Naked Energy operates on a business-to-business model, working with a global network of strategic partners, distributors, and certified installers to deliver its technology to commercial and industrial clients. The company also offers a "Heat-as-a-Service" model, which allows customers to adopt zero-carbon heat solutions without upfront capital expenditure, paying only through operational expenses. Furthermore, Naked Energy provides a bespoke system design service to ensure its solar thermal technology integrates efficiently with existing heating systems. The company has secured significant funding to support its growth, including a Series B round in July 2024 led by E.ON Energy Infrastructure Solutions, with support from existing investor Barclays. This investment is aimed at accelerating global expansion, particularly in the US and Europe, and scaling the distribution of its technology.
At a glance
- Status
- Operational
- Founded
- 2009
- Headquarters
- Crawley, United Kingdom
- Employees
- 44
- Open positions
- None listed
- Dealroom signal
- 91.4/100
- Sub-industry
- Clean Energy, Energy Storage
- Sector
- Energy, Solar Energy, Sustainable Development Goals, Thermal Energy Storage, Climate Tech, EIT Climate-KIC Portfolio, EaaS, Renewable Energy, EIT KIC Partners
- Technology
- Hardware, Deep Tech
- Business model
- Manufacturing
- Client focus
- b2b
Latest news
Press, funding announcements and product moves mentioning Naked Energy.
Funding history
Company financing events and reported valuations.
| Deal type | Date | Amount | Valuation | Investors | Source |
|---|---|---|---|---|---|
| LATE VC✓Equity / VC | Aug 2026 | $12M | $47M | Barclays Climate Ventures · Great British Energy | ↗ |
| SERIES B✓Equity / VC | Jul 2024 | $22M | $90M | E.ON · Barclays Climate Ventures | ↗ |
Financials
Revenue, earnings and other financial measures where available. Years marked “E” are estimates.
Growth signals
Latest recorded traffic for Naked Energy is 4.6K monthly website visits, up 17.9% over the last three months. Naked Energy's team grew 12.8% over the past year.
Similar companies
Company identity and context are open; selected comparison metrics preview what is available on the platform.
Investors
From Dealroom's funding and investor records, grouped by the round each investor first entered.
Series A5 investors entered at this stage
Earthworm- BPBig Sky Partners
Nesta Impact Investments
E.ON
Barclays Climate Ventures
Series B and later1 investor entered at this stage
Great British Energy
Other known investors9 additional known investors
Tech Nation
Antoine Pradayrol
Current
EIT Climate KIC
Greenbackers Investment Capital
Grow London
Ocean Born Impact
The Greenhouse
Unreasonable Group
Source: Dealroom Talent Intelligence.
Global footprint
team presence
Market sentiment
An AI-synthesised read of the highest-engagement posts about Naked Energy on X, ranked by likes and reposts, corporate channels excluded.
Reading the room on X — pulling top posts and synthesizing themes…
Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour
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